Only listened a little, but was it in the original key? Makes all these comments about how only Matt can sing it a bit silly

It was but it's not so much range as Brandon's (is that his name?) voice sounding a bit thin and shakey. Some of his falsetto work sounded a smidge rough as well, this in particular isn't far from drunken karaoke

Yeah but is obviously connected. Sustaining higher notes will be more difficult than sustaining lower notes. But it honestly looked like Brandon had problems with sustaining notes at all. So I'm not arguing that it was a pretty mediocre performance. But I won't judge them for that.

A great gesture. The performance itself was mediocore, but no surprise here, they decided to play it day before - not much time for preparations. Not to mention the fact, that Matt's style is not suitable for Brandon's vocal.